Hi,

Basically I'm trying to use a sorting function from a module as i want to sort an array of arrays. I've stuck on this step for about 3 hrs, and just can't get the array of arrays to sorted as I expected.


personel.pm:

package personel;

use Data::Dumper;

sub sortAge {
    $b->[1] <=> $a->[1];
}

return 1;

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in another file, 

#under test.pl
@age = ( @f1 = (amy,35), @f2=(bill,55), @f3=(george,28), @f4=(jason,71
+));
@age = sort personal::sortAge(\@age);

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In a stand-alone program where subroutine is together with @age, I can simply do 

@age = sort sortAge(@age);

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and the expected result is like 
@age = ( @f4=(jason, 71), @f2=(bill, 55), @f1=(amy, 35), @f3=(george, 
+28))

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but when i put the subroutine in a module, it doesn't get sorted.

I also tried

 personel::sortAge(@age)

as passing directly without a reference, but the Dumper print only 1 value, as if the @age didn't get pass in successfully. In order to pass an array as a parameter to a subroutine of a module, pass by reference is needed. So I'm really confused now as how to get the @age to sort properly.

I read online that you can do something like 

my @array = caller;
${$"{array}::b"}->[1] <=> ${$"{array}::a"}->[1]

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but I cannot understand the syntax at all.</code>

So....please help!!! Thanks in advance!

In reply to Using a sorting subroutine in a module with an array of arrays as parameters by polmed

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